基于纳米纤维素的环保纳米复合材料用于有效的废水处理:对其过程优化,改善胀,吸附以及热和机械行为的研究
Harshdeep Rana1,2, Anamika1, Dipti Sareen2
1Chemical Engineering Division, Center of Innovative and Applied Bioprocessing, Mohali, Punjab 140306, India.
ACS omega
|March 4, 2024
概括
一种新的纳米纤维素水凝有效地从织废水中去除甲蓝色染料. 这种可重复使用的吸附剂显示出高容量和效率,为染料污染控制提供了可持续的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 由于染料污染,织行业的废水给环境带来了重大挑战.
- 开发高效且可重复使用的吸附剂对于可持续的废水处理至关重要.
研究的目的:
- 为了合成和优化基于纳米纤维素 (NC) 的交联液凝吸附剂,用于去除染料.
- 评估合成的水凝的吸附能力,动力学,热力学和可重复使用性.
主要方法:
- 为最大的膨胀指数和吸附能力优化水凝组合物 (瓜尔,NC,).
- 在各种条件下 (pH,时间,温度) 使用甲蓝染料进行吸附研究.
- 使用吸附异温和动力模型 (弗朗德利希,伪二阶) 进行分析.
- 通过SEM,FTIR,TGA,XRD和风湿学分析进行表征.
- 吸附-脱附循环,以评估可重复使用性.
主要成果:
- 优化的水凝 (1.55%的瓜尔,1.46%的NC,0.84%的玻) 达到3741.42%的膨胀指数和24.05毫克g-1.1%的吸附能力.
- 在pH8,30°C下,在30分钟内获得98.8%的染料去除效率.
- 吸附遵循弗洛伊德利希等温和和伪二阶动力学,表明多层吸附.
- 在4个重复使用周期后,吸附剂保持了64.58%的效率.
结论:
- 合成的基于纳米纤维素的水凝是一种高效且可重复使用的吸附剂,用于从废水中去除染料.
- 该研究表明了基于NC的材料在环境修复应用中的潜力.
- 吸附剂具有有利的吸附特性和机械性能,适用于工业废水处理.
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